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2013 | 35 | 09 |

Tytuł artykułu

Enhancement of antioxidant enzymes activity and expression of CAT and PAL genes in hazel (Corylus avellana L.) cells in response to low-intensity ultrasound

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Induction of antioxidant systems of hazel cells by low-energy ultrasound, the potential role of hydrogen peroxide (H2O2) as a signaling molecule in regulation of activity of stress-related enzymes, and expression of catalase (CAT) and phenylalanine ammonialyase (PAL) genes were investigated. Suspension-cultured Corylus avellana L. cells were agitated by an ultrasonic device at 29 kHz with the power of 4 mW/cm2, for 8–40 min. The activities of CAT, superoxide dismutase (SOD), and ascorbate peroxidase (APX) of treated cells increased by 4, 1.7 and 7 times of the control ones, respectively. Induction of increase in the expression of CAT gene started 24 h after the treatment with ultrasound. Significant increase also was observed in the expression of PAL gene, 6 h after exposure to ultrasound, which resulted in turn to increase of total contents of soluble phenolics, 24 h of the treatment. Exposure to ultrasound up to 20 min had no adverse effects on cell viability although it slightly increased the accumulation of H2O2. However, it is likely that this level of increased H2O2 was not deteriorative for hazel cells, but rather triggered antioxidant system and provided hazel cells a sustainable growth after ultrasound treatment.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

35

Numer

09

Opis fizyczny

p.2847-2855,fig.,ref.

Twórcy

autor
  • Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
autor
  • Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
autor
  • Department of Genetics, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
  • Department of Physics, Faculty of Science, K.N.Toosi University of Technology (KNTU), POB 15418-49611, Tehran, Iran
autor
  • Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
autor
  • Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran

Bibliografia

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Bibliografia

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